APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: September 2018

 

24 hour TSP Measurement:-

Date

TSP concentration (mg/m3)

Weather Information

(From Hong Kong Observatory)

Reservoir

 

(AM1)

East

Gate

(AM2)

Ash Lagoon

 

(AM3)

Tai Yuen Village

(AM4)

Mean Wind Speed

(km/hr)

Prevailing Wind Dir.

(°)

Mean R.H.

 

(%)

2/9/2018

26

17

16

10

5.9

030

88

8/9/2018

44

51

49

40

16.1

360

81

14/9/2018

32

32

32

32

13.0

040

78

20/9/2018

29

28

21

14

11.3

220

77

26/9/2018

44

44

42

21

14.5

100

81

 

 

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

2/9/2018

15:00 - 15:59

16

5

9

16:00 - 16:59

20

14

14

17:00 - 17:59

30

18

14

8/9/2018

15:00 - 15:59

42

41

29

16:00 - 16:59

50

47

46

17:00 - 17:59

47

51

65

14/9/2018

15:00 - 15:59

57

57

36

16:00 - 16:59

57

34

31

17:00 - 17:59

50

30

32

20/9/2018

15:00 - 15:59

32

37

10

16:00 - 16:59

14

40

21

17:00 - 17:59

20

34

17

26/9/2018

15:00 - 15:59

44

46

44

16:00 - 16:59

44

49

43

17:00 - 17:59

59

53

45

 

 

 

 

 

 

                                               

                                                                 1-hr TSP                      24-hr TSP

                                                                         (mg/m3)                   (mg/m3)

Action Level                                                      340                         190

Limit Level                                                        500                         260

 

Calibration:          Calibration details are shown in appendix F.

 

Equipment used:

 

Location

1-hr TSP

24-hr TSP

Reservoir, East Gate and Ash Lagoon

TEOM

TEOM

Tai Yuen Village

-

MINIVOL Portable Sampler